possible hong kong open exchange point at apan42 … · the possible hong kong open exchange point...
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ThePossibleHongKong
OpenExchangePoint
Che-HooCHENG04Aug2016
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DevelopingaBlueprintforGlobalR&ENetworkArchitecture
http://gna-re.net• TheGlobalNetworkArchitectureprogram(GNA)isaninternationalcollaborationbetweennationalresearchandeducation(R&E)networks.
• TheGNAtechnicalworkinggroupischargedwithdraftingablueprintforinterconnectingR&Enetworksonaglobalscale,basedonthelatesttechnologiesandpromisingdevelopments,withaten-yearhorizon.
• ThisblueprintwillenableR&Enetworkstoaligntheirspendingforintercontinentalbandwidth.
• Participationisopentoallregionsoftheworld.
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PlanforGNA–High-levelArchitecture#1
http://gna-re.net/our-plan/• ThediscussionsinsidetheGNAgrouphaveledtoaglobalnetworkarchitecturemodelthatconsistsofapowerfulintercontinentaltransmissionsubstrate,consistingof:– GlobalOpenExchangePoints(GXPs)– High-bandwidthtransmissionpipes(runningbetweenGXPs)– forsharing
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GNA – artist’s impressionCredit – Mian Usman (DANTE)
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PlanforGNA–High-levelArchitecture#2
• TheGXPsinthisarchitecturemodelhavetwomajorfunctions:– Attachmentpointsforthehigh-bandwidthcircuitsofthesubstrate– forsharing
– ConnectionpointsfortheRegionalandNationalR&ENetworksthatarepartofandmakeuseoftheGNAinfrastructure
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PlanforGNA–High-levelArchitecture#3
• WeenvisionatleasttwoGXPspercontinentorregionthatareplacedinconsultationwiththeregion’sR&ENetworkorganizations,takingtheintercontinentalfiber pathsintoaccount.
• TheGNAsubstratesupportsthecreation,modification,anddeletionofoverlaynetworks.Inthefirstinstance,thisisexpectedtobemanual.Overtime,itisexpectedthatthiscanbefullyautomated.
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PlanforGNA–High-levelArchitecture#4
• Examplesofpermanentoverlaynetworksinclude:– GeneralpurposeIProutedinterconnect,supportingIPv4andIPv6,bothforunicastandmulticast
– CommercialPeeringServices– LHCOPNandotherOpticalPrivateNetworks– LHCONEandotherOpenNetworkEnvironments
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PlanforGNA–High-levelArchitecture#5
• Examplesofadhocoverlaynetworksinclude:– Scienceinstrumentsupportnetworkslikefore-VLBIthatareonlyneededduringasciencerun
– VirtualOrganizationnetworksforlargemulti-continentsciencecollaborationslikeLHC,ITER,Climate,oragencieslikeNIH.
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GXPExpectations#1http://gna-re.net/wp-content/uploads/2016/02/GNA-Open-Exchange-Expectations-v1.0-Technical.pdf• ServicesandCapabilities:
– afabricabletoaccommodateaconsistentsetofporttypesandtechnologies
– Colocation– Cross-connectstootherR&E,commercial&carrierfacilities– OutofBandaccess– Terminationandcross-connectionpointforinternationalcircuitsas
wellasdomestic/localconnections– Remotehandandon-callsupport(24x7)– Securityandaccess– Carrierneutral– Space,power,cooling,accesstoameetmeroom,physicalaccess
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GXPExpectations#2• PrinciplesofOperation
– OpenAcceptableUseApproach:AbilitytointerconnectwithanyR&EEntity
– OpenAcceptableUseApproach:Supportfor“Commercial”Traffic– ProductionQualityOperationsRegime&CommunityEngagement– Measurement– PrivacyofDataPolicyStatement– Flexibilityandagilityinaccommodatingevolvingtechnologies– PerformanceAssuranceNodeandAdHocTesting– QoS /QueuingSupport– OpenAccesstopeering– TimelinessofServiceSupportandServiceDelivery
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GXPExpectations#3• TechnologyandFunctionality
– TosupportthenetworkservicesrequiredbytheGNAmorethanjustlayer2best-effort– Layer2circuits
• SupportVLANtranslation• SupportGuaranteedBandwidthallocation• PolicerandShapersonperVLANandsetofVLANsbasis• TrafficBurstallowed• QinQ capabilities
– Supportpathprotectionandrestoration– DynamicCircuitProvisioning
• Supportdynamiccircuitprovisioningusingastandardizedprovisioningprotocol,e.g.NSI
– PolicyImplementation• GNAwillconsistoflinksprovidedbydifferentparticipants.Itisexpectedthatexchange
pointswillbeabletoimplementandenforcedifferentpoliciesoneachlinkasrequestedbythelinkowner.
• TheexchangepointsshouldbeabletoactasbothPolicyDecisionPoint(PDP)andPolicyEnforcementPoint(PEP)toenforceadmissionandusercontrolasdictatedbyconnectedorganizationpolicy.
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InternetExchangePoint(IXP)
• DifferencesfromOXP– Internetfocused– Inter-ASinterconnectionswithBGP4– BigIXVLAN(BroadcastDomain)forpublicpeeringwithstrictcontrol
• PortSecurity– SingleMAC/IPv4/IPv6per“port”
– BLPA&MLPAviaRouteServers– Mostlylayer-2besteffort
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WhatisHKIX?• HongKongInterneteXchange(HKIX) isthemainlayer-2InternetExchangePoint(IXP)inHKwherevariousautonomoussystemscaninterconnectwithoneanotherandexchangetraffic
• HKIXwasaprojectinitiatedbyITSC(InformationTechnologyServicesCentre)ofCUHK(TheChineseUniversityofHongKong) andsupportedbyCUHKinApr1995 asacommunityservice
• HKIXservesbothcommercialnetworksandR&Enetworks
• Theoriginalgoalistokeepintra-HongKong trafficwithinHongKong
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21st AnniversaryofHKIX
• HKIXstartedwiththincoaxialcablesinApr1995
• Participantshadtoputco-locatedroutersatHKIXsitesinordertoconnect
• Itwasafreeservice
• HKIXstartedveryearly,wellbeforeincumbenttelcos startedtodoISPbusiness,sothatiswhyHKIXcanbesuccessful
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ISP DISP A ISP B ISP C
Routes of ISP A
Routes of All ISPs in HKIX
Routes of ISP B
Routes of ISP C
Routes of ISP D
Routes of All ISPs in HKIX
Routes of All ISPs in HKIX
Routes of All ISPs in HKIX
MLPARoute
Servers
Routes of All ISPs in HKIX
Routes from All ISPs Switched Ethernet
HKIXModel—MLPAoverLayer2+BLPA
• MLPA (mandatory only for HK routes) traffic exchanged directly over layer 2 without going through MLPA Route Server
• BLPA over layer 2 without involvement of MLPA Route Server
• Supports both IPv4 and IPv6 over the same layer 2 infrastructure
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HKIXToday• theHongKongInterneteXchange Ltd
– 100%ownedbyCUHK– Chargeableservicesbutnotreallyforprofit
• SupportsbothMLPA(MultilateralPeering)andBLPA(BilateralPeering)overlayer2
• SupportsIPv4/IPv6dual-stack• Moreandmorenon-HKparticipants• 241 autonomoussystemsconnected• 463 connectionsintotal
– 257 x10GE & 206 xGE– Afew100GEconnectionsarecoming
• 630+Gbps(5-min)totaltrafficatpeak• AnnualTrafficGrowth=30+%
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YearlyTrafficStatistics
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• AllowparticipantstoconnecttoHKIXmoreeasilyatlowercost fromthosesatellitesitesinHongKong
• OpentocommercialdatacentresinHKwhichfulfilminimumrequirementssoastomaintainneutralitywhichisthekeysuccessfactorofHKIX
• Intendtocreatewin-winsituationwithsatellitesitecollaborators
• TobenamedHKIX2/3/4/5/6/etc– HKIX2alreadyconfirmed- beingmigratedfromoldarchitectureto
newarchitecture
• HKIX1andHKIX1b(thetwoHKIXcoresiteslocatedwithinCUHKCampus)willcontinuetoserveparticipantsdirectly
SettingupMultipleHKIXSatelliteSites
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R&ENetworksHavingPresenceinHK
• APAN-JP/JGN-X• ASCC-ASNET• ASGC• ASTI-PREGINET• CERNET/CERNET2• CSTNET• JUCC-HARNET• KISTI-KREONET2• NIA-KOREN• NUS• TEIN4
• MostoftheseR&EnetworkshavenetworkpresenceatMEGA-iAdvantage (MEGA-i)Building(butondifferentfloors)
• MostareconnectedtoHKIX-R&EatMEGA-i– HKIX-R&EisaspecialnodeofHKIX(www.hkix.net) whichservesR&Enetworksonlyandconnects
toHKIXcoreswitcheswith2x10GEcircuits
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HKIX-R&E−SpecialSupportforR&ENetworksHavingPresenceinHK
• HKIXhelpsthoseR&ENetworkstointerconnectwithcommercialnetworks withoutrestrictionsviaHKIX-R&EswitchatMEGA-i
• SupportGE/10GETrunkPortsforR&ENetworksonly• Supportspecialpoint-to-pointVLANsforR&ENetworksonly
– Forprivateinterconnectionsamongany2R&Enetworks– JumboFramesupport
• Offercolo atnewHKIX1bsiteinsideCUHKCampus– Upto2racksperR&Enetwork
• DiscountedMRC– NoMRCforfibercross-connects– BasicRemoteHands&Eyesincluded– Thisofferalwaysstands
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HKIX-R&ESwitchatMEGA-i
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Utilizationofthe2x10GELinks
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PossibleGuam-HK10G/100GCircuitTerminationPoint
• TobefundedbyNSFofUS:Confirmed?Timeline?• Ifgoahead,whereisthebestterminationpointinHK?
– BesttoterminateitatthepossibleHKOXP
• BesttohaveallR&Enetworksco-locatedinthesameroomwithlong-termcontractforeasiestinterconnectionsandsustainabledevelopment– Currently,individualR&EnetworksatMEGA-i needtorelocatefromonefloor
toanotherwithinMEGA-i onceevery2to3yearsduetochangeofsupplier– Layingfibercross-connectsacrossfloorswithinMEGA-i canbedifficult
sometimes• Twomainoptionswereidentified,butthereareotheroptions:
– MEGA-i• Colo,PowerandCross-Connectsareexpensive• BesttomovetothesameroomonthesamefloorinsideMEGA-i
– AlreadyconfirmedwithiAdvantage thatthisisfeasible,subjecttocommercialagreement
– CUHK/HKIX1b• Backhaulforinternationalcircuitsmaybemoreexpensive
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ThingstoDetermine• DoweneedOpenExchangePointinHongKong(HKOXP)?Whotosetup
andoperateit?– IfHKhasaGlobalOpenExchangePoint(GXP),itcanbenefitmostpartofR&E
community• NotethatalotofR&EnetworkshavealreadychosentohavenetworkpresenceinHongKong
– JUCC/HARNET iswillingtocontributebyprovidingandoperatingtheswitchneededforGXP
• Mustsupport100G• MaygraduallytakeovertheexistingroleofHKIX-R&Enode(theleftpart)
• Whereshouldbethelocationofthesharedcolo spaceinHongKongforallR&EnetworkshavingpresenceinHK?
– MEGA-i?– CUHK/HKIX1b?– Othercommercialdatacenteroptions?
• BetterbeHKIXSatelliteSites
– Betterbelong-termandcost-effectivebutNOTverycriticalthough
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TheDecisionProcess?
• Toomanystakeholdersinvolved• Differentstakeholdershavedifferentrestrictions• WillallR&Enetworksfollow?
– Relocatetheirequipmenttonewlocation?– TerminatetheirexistinginternationalcircuitstothenewHKOXPswitch?
• ForsharingamongallR&Enetworks
• Willexistinglayer-3networks(suchasTEIN)becomeoverlaynetworks?
• ItisNOTeasy…
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HKOXPForumonAug3(Wed)• Healthydiscussionondifferentoptions• SomestakeholdersstillprefertostayatMEGA-i• “RoughConsensus”wastomaintainthestatusquoandtodo
regularreviewatthefutureAPANmeetings,whiletheset-upforHKOXPandtheestablishmentofGuam-HKcircuitarebeingdetermined
• Statusquoisagoodstartingpointasthingsareworkingfornow• Evolution,notrevolution
• Alsoreceivedfurthercommentsfromotherstakeholdersafter theForum– SomeprefertohaveeverybodyinthesameroominsideMEGA-i– SomeprefertomoveawayfromMEGA-i
• Morecommentsarewelcome
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AnyQuestions/Comments/Suggestions?